Step 1: Understanding economic infrastructure.
Economic infrastructure includes facilities that directly support production, distribution, and economic activities such as transport, communication, power, and banking.
Step 2: Differentiating.
- Social infrastructure includes education and health.
- Economic infrastructure focuses on physical facilities like transportation.
Step 3: Analyzing the options.
(A) Education: Part of social, not economic.
(B) Health: Part of social, not economic.
(C) Civil Services: Related to administration, not core economic infrastructure.
(D) Transportation: Correct — a core component of economic infrastructure.
Step 4: Conclusion.
Thus, transportation is a part of economic infrastructure.